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amid [387]
3 years ago
7

What movements do the quadriceps femoris muscles perform?

Biology
1 answer:
Anna71 [15]3 years ago
6 0

Answer:

a. Extension of the lower leg

Explanation: is correct

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The first evidence supporting the theory of continental drift was _____.
Gelneren [198K]

Answer:

The correct answer is option B.

Explanation:

The continental drift theory suggested that all land were all together and drifted because of several changes in the environment.

For example, the west coast of Africa and South America seem to fit all together like are pieces of a jigsaw puzzle.

Thus, the very first evidence about supporting the theory of continental theory.

6 0
4 years ago
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Why do you think the sympathetic and parasympathetic systems have opposing functions?
RoseWind [281]
<span>The sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. The parasympatheticnervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.</span>
4 0
3 years ago
In a crime scene, what would you place matches in found as evidence? And why?
andriy [413]

Answer:

A plastic bag

Explanation:

Because most evidence is stored in a plastic bag so no evidence is removed and it is protected.

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3 years ago
The chloroplasts of flowering land plants typically contain at least two photosynthetic pigments, chlorophyll a and chlorophyll
andrezito [222]

Answer:

a. In chlorophyll photosystems, the photons excite electrons that are transferred from donor to acceptor molecules in a process that involves oxidation-reduction reactions

b. As negative controls could be produced targeted mutations in genes encoding for enzymes that are not involved in the growth and in the photosynthetic activity

c. The plants that have many classes of photosynthetic pigments absorb light in different ranges of the visible spectrum, thereby it may confer an adaptive advantage to these plants

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4 years ago
What happens to the stem body after the cell devides
iren2701 [21]
It depends on the cell type. If it's a tissue cell, it will divide into 2 daughter cells through the mitosis process. If it's a gamete cell, it will divide through meiosis into 4 daughter cells.
Hope this helps!  
4 0
3 years ago
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